| 摘要 |
The disclosure discloses an S1 handover method, a data forwarding method in S1 handover, and a mobile communication system. In the solution of the disclosure, the source side mobility management entity receives a handover request and sends a message to stop data sending to the source side service gateway; the source side service gateway stops sending data to the source side eNB after receiving the message to stop data sending, and caches the data; the source side mobility management entity configures a forward tunnel between the target side service gateway and the source side service gateway after receiving a Forward Relocation Response; and the source side service gateway forwards the cached data to the target side eNB via the forward tunnel and the target side service gateway. In the solution of the disclosure, the process of re-forwarding, by the source side eNB, data to the source side service gateway is omitted, thereby the resources for establishing and releasing a forward tunnel between the source side eNB and the source side service gateway are saved, hence data forwarding efficiency is increased. |
